#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main() {
	//int a = 5;
	//int b = (a == 5 ? 3+2 : -3);
	////printf("b=%d", b);
	//short i = 1;
	//int c = 9;
	//printf("%zd\n",sizeof(i + c));
	//printf("%zd\n", sizeof(i = i + c));
	//printf("%d %d", i, c);
	char c[10];
	scanf("%[abcd]", &c);
	printf("%s", c);
	return 0;
}